| Joseph Harris - Astronomical models - 1732 - 236 pages
...Pole is placed, and the opppfite one is the Southern Hemifphere. The Aftronomers divide all Circles **into 360 equal Parts called 'Degrees, each Degree...Parts called Minutes, each Minute into 60 Seconds,** &c. But befides this Divifion into Degrees, the Equir noftial is commonly divided into 24 equal Parts... | |
| Benjamin Donne - 1796 - 120 pages
...calculating the proportion which angles bear to each other, fuppofe the circumference of every circle **to be divided into 360 equal parts, called Degrees...equal parts, called minutes ; each minute into 60** equal parts named feconds, &c. Ar. B. Sometimes the circumference of a circle is called a circle; as... | |
| William Taylor (teacher of the mathematics.) - Arithmetic - 1800 - 556 pages
...a' femi-eircle • half the diameter is called the Radius. 8. The circumference of every circle is **divided into 360 equal parts called Degrees ; each degree into 60 equal parts, called Minutes** ; and each minute into 60 equal parts, called Seconds, &c. Any part of the the circumference is called... | |
| Mathematics - 1801 - 446 pages
...the two sides, that, which stands at the angular point, is rend in the middle. C 56. The 39° 5 6. **The circumference of every circle is supposed to be divided into 360 equal parts, called degrees** ; and each degree into 60 minutes, each minute into do seconds, and so on. Hence a semicircle contains... | |
| Alexander Adam - Classical dictionaries - 1802 - 914 pages
...radii of the fame circle are always equal to one another. The circumference of every circle is fuppofed **to be divided into 360 equal parts, called degrees ; each degree into 60** mi* ņutes \ each minute into 60 feccnds ; and thefe into thirds, fourths, &c. greater or Ąefs according... | |
| Abel Flint - Surveying - 1804 - 226 pages
...the Centre ; and it divides the Circle into two equal parts, called Semicircles ; as AB or DE. 14. **The. Circumference of every Circle is supposed to be Divided into 360 equal parts, called Degrees** ; and each Degree into 60 equal parts, called Minutes ; and each Minute into 60 equal parts, called... | |
| David Steel - History - 1805 - 392 pages
...centre to the circumference of a circle, is called a Radius. All the radii of the same circle are equal. **The circumference of every circle is supposed to be divided into 360** parts, called degrees; each degree into 60 equal parts, called minutei; and each minute into 60 equal... | |
| John Bonnycastle - Trigonometry - 1806 - 464 pages
...by an arc of a circle contained between its two legs, and having the angular point for its centre. **Every circle is supposed to be divided into 360 equal...equal parts, called minutes ; each minute into 60** equal parts, called seconds ; &c. So that a semicircle, or half the circumference, contains 1 80 degrees... | |
| Christoph Christian Sturm - Devotional literature, German - 1806 - 342 pages
...night together make the solar day. We divide it into 24 parts, called hours : each hour is divided **into 60 equal parts, called minutes? each minute into 60 seconds; and each second into 60 thirds.** This division of the day into hours, minutes, &c. is marked by the motion of the shadow on a sun-dial,... | |
| Robert Gibson - Surveying - 1806 - 486 pages
...circumference into two equal parts called semicircles ; and is double the radius, as AB or DE. fig. 8. • 18. **The circumference of every circle is supposed to be divided into 360 equal parts called degrees,** and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds,... | |
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